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122101102020220 = 22553115189718887
BaseRepresentation
bin11011110000110011100000…
…110100000000011001111100
3121000022202021201220122200221
4123300303200310000121330
5112001001024104121340
61111404245533031124
734501341063526531
oct3360634064003174
9530282251818627
10122101102020220
11359a5871a15204
12118400180254a4
1353191138aab3b
142221a21086d88
15e1b1e34a244a
hex6f0ce0d0067c

122101102020220 has 24 divisors (see below), whose sum is σ = 261250282437984. Its totient is φ = 47918923056576.

The previous prime is 122101102020211. The next prime is 122101102020251. The reversal of 122101102020220 is 22020201101221.

It is a happy number.

It is a super-2 number, since 2×1221011020202202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122101102020194 and 122101102020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57594858384 + ... + 57594860503.

It is an arithmetic number, because the mean of its divisors is an integer number (10885428434916).

Almost surely, 2122101102020220 is an apocalyptic number.

122101102020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101102020220 is an abundant number, since it is smaller than the sum of its proper divisors (139149180417764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122101102020220 is a wasteful number, since it uses less digits than its factorization.

122101102020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115189718949 (or 115189718947 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122101102020220 its reverse (22020201101221), we get a palindrome (144121303121441).

The spelling of 122101102020220 in words is "one hundred twenty-two trillion, one hundred one billion, one hundred two million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 115189718887 230379437774 460758875548 575948594435 1151897188870 2303794377740 6105055101011 12210110202022 24420220404044 30525275505055 61050551010110 122101102020220